Recently there has been a rattling noise (almost like a set of keys) from the dash. It sounds like it's right by the windscreen where the 2 defroster vents meet. I know for sure nothing has fallen in there. What is under there? I'm thinking about 'popping out' one of the defroster vent air directors to see what's in there but thought i'd post here first. If I just sit in the car and bang on the dash (in the center nearest the engine) I can recreate. Any assistance would be great. Thanks in advance.